Whakaoti mō y
y=-1
Graph
Tohaina
Kua tāruatia ki te papatopenga
3\left(3-5y\right)=4\left(2-4y\right)
Me whakarea ngā taha e rua o te whārite ki te 12, arā, te tauraro pātahi he tino iti rawa te kitea o 4,3.
9-15y=4\left(2-4y\right)
Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te 3-5y.
9-15y=8-16y
Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te 2-4y.
9-15y+16y=8
Me tāpiri te 16y ki ngā taha e rua.
9+y=8
Pahekotia te -15y me 16y, ka y.
y=8-9
Tangohia te 9 mai i ngā taha e rua.
y=-1
Tangohia te 9 i te 8, ka -1.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
4 \sin \theta \cos \theta = 2 \sin \theta
whārite paerangi
y = 3x + 4
Arithmetic
699 * 533
Poukapa
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
whārite Simultaneous
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Whakarerekētanga
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Whakaurunga
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}